Why does the higher the outlet temperature of the vacuum furnace, the lower the temperature at the top of the vacuum distillation column?
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Why does a higher exit temperature of the vacuum furnace result in a lower temperature at the top of the vacuum tower? Previously, it was the low exit temperature of the furnace that caused the low temperature at the tower top
Is there a possibility of cracking at higher temperatures, with more light components? Previously, the temperature was low, so the temperature at the top of the tower was also low; there wasn’t enough heat, and as a result the light components at the top of the tower had a low temperature.
Causality is not that simple; there are many other factors at play.
The outlet temperature of this vacuum furnace is not closely related to the temperature at the top of the tower； If the temperature of the vacuum furnace has affected the temperature at the top of the tower, then an accident has already occurred! Therefore, the level of temperature at the top of the vacuum distillation tower is caused either by an imbalance in heat absorption within the tower or by changes in the properties of the feed material, without corresponding adjustments to the tower’s heat absorption balance It doesn’t matter; focus on the relationship between the outlet temperature of the furnace and the top temperature of the tower, and pay more attention to the heat balance within the tower
Is the exit temperature of the vacuum furnace high, is coking and polymerization severe, and has the operating cycle been shortened? The temperature at the top of the vacuum tower is determined by both the tower pressure and the composition of the gas at that point. During an increase in the temperature of the vacuum furnace, if the temperature at the top of the vacuum tower first rises and then falls, it indicates that decomposition of certain components has occurred once a certain temperature is reached.
There is no direct relationship between the tower top temperature and the furnace outlet, right?
But with all other operating conditions unchanged, why has the top pressure of my tower decreased when the furnace temperature is increased?
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